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AITS & Test SerieshardMCQ SINGLE

Question

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Chemistry diagram for: See image

Answer: A

💡 Solution & Explanation

 2 3 7 o 850 C 2Y O +8BaCO +12CuO+O 4YBa Cu O +8CO 2 3 3 2 2 A    Common oxidation state of Y  + 3 Common oxidation state of Ba  + 2 Oxidation state of Cu +7 = 3      

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